Chess Opening Crossword

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Across
  1. 3. Popular defense infamous for its blocked light squared bishop
  2. 4. Popular White system where White usually makes a "pyramid" of pawns
  3. 7. Defense vs the Ruy Lopez named after the capital of Germany
  4. 8. d4 Nf6 opening with a fianchettoed bishop on g7
  5. 9. Flank opening named after a 19th century Englishman
  6. 10. Nonsense opening made famous by Magnus and Naka
  7. 16. White gambit named after Welsh sea captain
  8. 18. Opening family that includes the O'Kelly and Kalashnikov variations
  9. 19. Anti-18-Across played at the club level
  10. 20. Flank opening that begins after 1. c4
  11. 21. Maybe the best beginner White opening from the country of panettone
Down
  1. 1. Black gambit named after Hungarian-American grandmaster Pal
  2. 2. Nordic dweller
  3. 5. Slovak GM rhyming with a famous snowman
  4. 6. Flexible Animal Defense System
  5. 11. A popular opening vs 1. e4 that is currently often referred to by kids as the 'meta'
  6. 12. Black opening vs 1. d4, named after Holland's main language
  7. 13. Commonly called Modern
  8. 14. An adult beverage
  9. 15. Standard 1. d4 opening that has its own Netflix mini series
  10. 17. Aggressive White opening after 1. e4 from the city that first invented croissants
  11. 19. Fourth World Champion